1 /* { dg-do compile } */
2 /* { dg-options "-fsanitize=shift -w" } */
3 /* { dg-shouldfail "ubsan" } */
4
5 int
foo(int x)6 foo (int x)
7 {
8 /* None of the following should pass. */
9 switch (x)
10 {
11 case 1 >> -1: /* { dg-error "case label does not reduce to an integer constant" } */
12 case -1 >> -1: /* { dg-error "case label does not reduce to an integer constant" } */
13 case 1 << -1: /* { dg-error "case label does not reduce to an integer constant" } */
14 case -1 << -1: /* { dg-error "case label does not reduce to an integer constant" } */
15 return 1;
16 }
17 return 0;
18 }
19
20 int
bar(int x)21 bar (int x)
22 {
23 /* None of the following should pass. */
24 switch (x)
25 {
26 case -1 >> 200: /* { dg-error "case label does not reduce to an integer constant" } */
27 case 1 << 200: /* { dg-error "case label does not reduce to an integer constant" } */
28 return 1;
29 }
30 return 0;
31 }
32